Re: [pop-pop-steamboats] Bending Square Tubing (was: USS Monitor)

All are excellent suggestions and work very well on tubing (which by definition is round in cross-section). Every solution I ve ever seen for bending tubing

Message 1 of 6
, Mar 6 7:59 PM

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All are excellent suggestions and work very well on
tubing (which by definition is round in cross-section). Every solution I've ever
seen for bending tubing shares two common features:

1) You fill the tube with "something" to support
the shape of the walls while bending (sand, wood, heavy springs), and

2) You use something round approximating the final
desired radius so as to distribute force evenly across the radius of the
bend.

It really is more of a stretch of the outer radius
than a compression of the inner radius, at least when its done right ;-)

Square 'tubing', as the original question
specified, cannot be bent sharply without
catastrophic deformity; mild deflections can be introduced directly to the
material, but would not be useful in our application.

Instead remove a wedge of material, gently file
away the rough bits, re-align the duct, then flux and solder. I leave one face
intact to act as a hinge and provide a solid base for the joint. Be sure to make your cuts plumb. Voila!! One nifty, angled square tube. It is very
much like making a picture frame, only without all that wood
smell...

Corners of any desired angle can be
made.

Hope this helps,

Regards,

Ken

----- Original Message -----

>
> > Nobody has commented one way or the other about the suggestion for
using > > > rectangular tubing-> > > > Do you
need a special bending device to prevent rectangular tubing > >
collapsing when bent? David 1/2d

Hi Ken You apparently have not visited the group to search for posts about square tubing, or to visit our photos and files sections. If you had, you might have

Message 3 of 6
, Mar 7 6:34 AM

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Hi Ken

You apparently have not visited the group to search for posts about square tubing, or to visit our photos and files sections. If you had, you might have found photos of the little wooden boat Popflea and a pdf file of a magazine article that inspired Richard Jenkins' use of square brass tubing for a square tube horseshoe engine with superior performance over boats with coiled round tube or diaphragm boilers.

Frank

--- In pop-pop-steamboats@yahoogroups.com, "Sailboat Modeler" <sailboat.modeler@...> wrote:
>
>
> All are excellent suggestions and work very well on tubing (which by definition is round in cross-section). Every solution I've ever seen for bending tubing shares two common features:
>
> 1) You fill the tube with "something" to support the shape of the walls while bending (sand, wood, heavy springs), and
> 2) You use something round approximating the final desired radius so as to distribute force evenly across the radius of the bend.
>
> It really is more of a stretch of the outer radius than a compression of the inner radius, at least when its done right ;-)
>
>
>
> Square 'tubing', as the original question specified, cannot be bent sharply without catastrophic deformity; mild deflections can be introduced directly to the material, but would not be useful in our application.
>
> Instead remove a wedge of material, gently file away the rough bits, re-align the duct, then flux and solder. I leave one face intact to act as a hinge and provide a solid base for the joint. Be sure to make your cuts plumb. Voila!! One nifty, angled square tube. It is very much like making a picture frame, only without all that wood smell...
>
> Corners of any desired angle can be made.
>
>
>
> Hope this helps,
>
> Regards,
>
> Ken
>
>
> ----- Original Message -----
> > > > Nobody has commented one way or the other about the suggestion for using
> > > > rectangular tubing-
> > >
> > > Do you need a special bending device to prevent rectangular tubing
> > > collapsing when bent? David 1/2d
>

Sailboat Modeler

Yes, it would seem that a trip to the archives is in order. Embarrasingly, that is something I usually do when joining a new group so as to avoid just such an

Message 4 of 6
, Mar 7 8:40 AM

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Yes, it would seem
that a trip to the archives is in order. Embarrasingly, that is something I
usually do when joining a new group so as to avoid just such an unpleasant
moment as this.

Thanks to all for your delicate reminders, I shall
be doing a bit of reading over the next little while and will limit my future
posts to those that are of certifiable worth or are simply inquisitive in
nature. Apologies to all for missing the mark so widely, hopefully someone was
at least wryly amused by this...

You apparently have not visited the group to search for
posts about square tubing, or to visit our photos and files sections. If you
had, you might have found photos of the little wooden boat Popflea and a pdf
file of a magazine article that inspired Richard Jenkins' use of square brass
tubing for a square tube horseshoe engine with superior performance over boats
with coiled round tube or diaphragm
boilers.

Frank

Pete B.

Ken, Please continue any and all of your pop-pop posts & questions. I doubt that any of us can recall all that is in our archives. Old Frank does better than

Message 5 of 6
, Mar 7 9:24 AM

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Ken,

Please continue any and all of your pop-pop posts & questions. I doubt
that any of us can recall all that is in our archives. Old Frank does
better than most and can usually point you in the right direction.

No matter how simple the questions they frequently spark an idea or two.
What's that saying? "The only dumb question is the one you don't ask"!

Embarrasingly, that is something I usually do when joining a new group
so as to avoid just such an unpleasant moment as this.

>
> Thanks to all for your delicate reminders, I shall be doing a bit of

reading over the next little while and will limit my future posts to
those that are of certifiable worth or are simply inquisitive in nature.
Apologies to all for missing the mark so widely, hopefully someone was
at least wryly amused by this...

>
> Hi Ken
>
> You apparently have not visited the group to search for posts about

square tubing, or to visit our photos and files sections. If you had,
you might have found photos of the little wooden boat Popflea and a pdf
file of a magazine article that inspired Richard Jenkins' use of square
brass tubing for a square tube horseshoe engine with superior
performance over boats with coiled round tube or diaphragm boilers.

>
> Frank
>

Frank McNeill

Hi All, I was reading one of the posts on gmail when I sensed a draft of warm air on the back of my neck and realized that Google was looking over my shoulder

Message 6 of 6
, Mar 7 9:45 AM

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Hi All,

I was reading one of the posts on gmail when I sensed a draft of warm air on the back of my neck and realized that Google was looking over my shoulder to read my mail in order to post a related sidebar ad.
Go to http://tinyurl.com/adtbpa for Google's latest contribution.

Old Frank

--- In pop-pop-steamboats@yahoogroups.com, "Pete B." <georgeyyy@...> wrote:
>
>
> Ken,
>
> Please continue any and all of your pop-pop posts & questions. I doubt
> that any of us can recall all that is in our archives. Old Frank does
> better than most and can usually point you in the right direction.
>
> No matter how simple the questions they frequently spark an idea or two.
> What's that saying? "The only dumb question is the one you don't ask"!
>
> Pete
>
>
> --- In pop-pop-steamboats@yahoogroups.com, "Sailboat Modeler"
> <sailboat.modeler@> wrote:
> >
> > Yes, it would seem that a trip to the archives is in order.
> Embarrasingly, that is something I usually do when joining a new group
> so as to avoid just such an unpleasant moment as this.
> >
> > Thanks to all for your delicate reminders, I shall be doing a bit of
> reading over the next little while and will limit my future posts to
> those that are of certifiable worth or are simply inquisitive in nature.
> Apologies to all for missing the mark so widely, hopefully someone was
> at least wryly amused by this...
> >
> > Regards,
> >
> > Ken Berry
> > Captain, SS "Chagrin"
> >
> >
> >
> > ----- Original Message -----
> > From: Frank McNeill
> > To: pop-pop-steamboats@yahoogroups.com
> > Sent: Saturday, March 07, 2009 7:34 AM
> > Subject: [pop-pop-steamboats] Re: Bending Square Tubing (was: USS
> Monitor)
> >
> > Hi Ken
> >
> > You apparently have not visited the group to search for posts about
> square tubing, or to visit our photos and files sections. If you had,
> you might have found photos of the little wooden boat Popflea and a pdf
> file of a magazine article that inspired Richard Jenkins' use of square
> brass tubing for a square tube horseshoe engine with superior
> performance over boats with coiled round tube or diaphragm boilers.
> >
> > Frank
> >
>

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